KAWASAKI JETSKI 1989 650 TS IMPELLER SHAFT

[SKADGAGE]

MY JET SKI MOTOR RUNS GREAT SEEMS FULL OF POWER i LOOKED AT THE SHAFT AND I THINK THE SPLINES ARE OK AND THE IMPELLER LOOKS OK AS WELL . WHEN I DRIVE IT ,IT WILL ONLY GO ABOUT 10 MPH IT ACTS LIKE THE SHAFT IS SLIPPING . TO REMOVE THE SHAFT DO I HAVE TO REMOVE THE MOTOR. WHAT ELSE COULD IT BE ?

 

[Jeff Walkowiak]

what is the clearance between the edge of the impellor and the pump liner? also if a driveshaft is stripped my experience is that it won't run at all, it just sits in place

 

[SKADGAGE]

the shaft when the impeller is off and pushed back into the notor side doesn't rotate and is tight , there is very little clearence between the walls almost scrapes, no wobble.. I have attached pictures of the spline. if i go slow i can move about 5 mph and whne i juice it it grabs for a second like it wants to go and then just acts like its slipping. does the motor have to be removed to replace the shaft?

 

[SKADGAGE]

could the coupler be bad that connects to the motor from the drive shaft should i pull that out . also the vane guide has deteriotated where it meets on the bottom . there is a 1/4 inch gap. but i think thats where the water is feeding so it wouldn't matter or would it?

 

[SKADGAGE]

on the drive shaft there is the part that meets the coupler at the motor does that unscrew ?

 

[SflSurfRider]

Sounds like your pump isn't siliconed to the hull properly. The slightest gap will cause mad cavitation.